Delete row ('1685', '20556') from daily_volatility

ticker_id 1685
day 20556
implied_open 0.7032406984809682
implied_high 0.7207026571339945
implied_low 0.7000657969076907
implied_close 0.704828149267607
historical_open 0.8175371551189585
historical_high 0.8175371551189585
historical_low 0.8175371551189585
historical_close 0.8175371551189585
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